0000000000076430
AUTHOR
Stephan Wagner
showing 4 related works from this author
Improvement of tricuspid regurgitation after pulmonary thromboendarterectomy
2002
For patients with chronic thromboembolic pulmonary hypertension who undergo pulmonary thromboendarterectomy (PTE) it has not yet been systematically investigated how operation affects the severity of tricuspid regurgitation (TR). This study sought (1) to evaluate the extent of TR reversibility after operation, (2) to identify potential predictors of the reversibility of TR, and (3) to investigate the influence of geometric and hemodynamic alterations on the extent of TR severity.Thirty-nine patients (55+/-12 years) undergoing PTE without tricuspid valve repair were investigated before and 13+/-8 days after operation by Doppler color flow mapping. Geometry of the tricuspid valve as well as r…
Pathophysiology of Impaired Right and Left Ventricular Function in Chronic Embolic Pulmonary Hypertension
2000
Study objectives: This study sought to evaluatethe pathophysiology of left and right heart failure in patients withchronic thromboembolic pulmonary hypertension (CTEPH) who werehospitalized to undergo pulmonary thromboendarterectomy (PTE). Design: Thirty-nine patients (16 women and 23 men;mean ± SD age, 55 ± 12 years) with severe CTEPH were examinedbefore and 13 ± 8 days after PTE by way of transthoracicechocardiography and right heart catheterization. Measurements and results: Examination resultsconfirmed in all cases that before surgery the right ventricles wereenlarged and systolic function was impaired. Moderate to severetricuspid valve regurgitation was observed. Left ventriculareccent…
Kardiopulmonale Parameter bei Hyperthyreose
1999
Background Hyperthyroid patients often suffer from impaired exercise capacity with dyspnoea. Two well established, non-invasive methods were used to evaluate the influence of hyperthyroidism on cardiopulmonary function. Patients and methods In 42 patients with hyperthyroidism we performed spirometry and cardiopulmonary exercise testing before and after 7 days of propranolol therapy as well as in euthyroidism. Results In hyperthyroidism reduced vital capacity and 1-second capacity were observed (95.5 +/- 2.4% vs 102.6 +/- 1.5%; p = 0.0087; 89.4 +/- 2.3% vs 95.2 +/- 2.2%; p = 0.0179). No changes showed during beta-blockade. At the anaerobic threshold reduced tidal volume and enhanced respirat…
Detection of Strands in Native Aortic Valves by Transesophageal Echocardiography
1997
Prevalence and echocardiographic characteristics of strands on the leaflets of native aortic valves were examined. According to our data, the strands we found in 39% of patients are most likely Lambl's excrescences.